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a)
The joule’s first law shows the relationship between heat produced by a flowing electric current through a conductor.
Q = I2 R T
Where,
Q indicates amount of heat,
I shows electric current
R is the amount of electric resistance in conductor
T denotes time
The joule’s first law shows the relationship between heat produced by a flowing electric current through a conductor.
Q = I2 R T
Where,
Q indicates amount of heat,
I shows electric current
R is the amount of electric resistance in conductor
T denotes time
Similar questions
I=P/V
=100/220=0.4545...A
Similarly, current drawn by the bulb of rating 60 W is given by
I=P/V
=60/220=0.2727...A
∴ the total current drawn from the line =0.4545+0.2727=0.727A